Solar Wind Disturbances and Their Sources in the EUV Solar Corona

A. N. Zhukov, I. S. Veselovsky, F. Clette, J. F. Hochedez, A. V. Dmitriev, E. P. Romashets, V. Bothmer, P. Cargill

研究成果: 書貢獻/報告類型會議論文篇章同行評審

4 引文 斯高帕斯(Scopus)

摘要

We investigate possible links between the activity manifestations in the solar corona and conditions in the solar wind. For the reduction of this immense task we have selected 206 events in the solar wind in 1997 - 2000 corresponding to geomagnetic events with Ap > 20 (compiled into a database at http://alpha.sinp.msu.ru/apev). Up to now, 24 events during the epoch of low solar activity (January 1997 - January 1998) are investigated. The solar wind conditions monitored by ACE and WIND spacecraft were traced back to the solar corona observed by SOHO/EIT. The search for coronal signatures which are probably associated with the disturbed solar wind conditions was performed. The coronal sources of these 24 events are identified, namely: eruptions in active regions, filament eruptions and coronal holes. It is shown that halo and partial halo CMEs observed within the SOHO/LASCO sensitivity limits are not necessary indicators of Earth-directed eruptions, and coronal EUV dimmings can be used as a complementary indicator. We also found that a structure now conventionally called a "sigmoid" cannot be represented as a single S-shaped loop (flux tube), but exhibits an assembly of many smaller structures. It could be formed and destroyed via eruptions.

原文???core.languages.en_GB???
主出版物標題Solar Wind Ten
主出版物子標題Proceedings of the 10th International Solar Wind Conference
編輯Marco Velli, Roberto Bruno, Francesco Malara
發行者American Institute of Physics Inc.
頁面711-714
頁數4
ISBN(電子)0735401489
DOIs
出版狀態已出版 - 2 9月 2003
事件10th International Solar Wind Conference - Pisa, Italy
持續時間: 17 6月 200221 6月 2002

出版系列

名字AIP Conference Proceedings
679
ISSN(列印)0094-243X
ISSN(電子)1551-7616

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???10th International Solar Wind Conference
國家/地區Italy
城市Pisa
期間17/06/0221/06/02

指紋

深入研究「Solar Wind Disturbances and Their Sources in the EUV Solar Corona」主題。共同形成了獨特的指紋。

引用此